The act or practice of reasoning or decision-making by a group, especially when characterized by uncritical acceptance or conformity to prevailing points of view.

To accept the general opinion of the group to which a individual either belongs too or wishes to belong too. To adopt the unreasoned and unfounded BS that someone spouts off as either Truth or Fact".

Dave said to the group "McDonnalds makes the best burgers". within the next day every other member of daves group had repeted the same opinion as if it was fact and start taking their dates to eat Big Mac's.

A subtle influence on a highly self-regarding and insular discussion group that deludes them into agreeing to dubious assumptions and plans on the basis that everyone else seemed to think it was a good idea... or at least no one wanted to be the one to speak up in dissent.

It mentally shortcuts past the process of examining risks and alternatives, assuming that of course the others have taken them into due consideration.

The Bay of Pigs invasion is often cited as a disasterous example of group think; how could the "best and the brightest" engineered such a fiasco?

An old "cult" brainwashing tactic implemented by the government and certain tv news media and talk shows where the group can be directed how to think a certain way by controllers within the group who steer the group towards certain conclusions thus giving the false impression that a consensus was arrived at democratically.

The "group mind" mentality destroys individuality.Draw all of your own conclusions about everything or you'll be utterly fucked.

Groupthink is a flaccid substitute for actual thought, as practiced by all good liberals. A groupthought originates deep in the arse of a liberal “leader.” The liberal leader pulls the groupthought out of her arse and dispenses it to the hordes of waiting liberals. The liberals gratefully accept the groupthought from the liberal “leader,” then they kiss her obsequiously on the arse, then they all mouth their little groupthink platitude as if it were actually true. It is far easier to use groupthink and let sissy-pants liberal “leaders” do your thinking for you.

The Irish Jig O’Bama, a self-proclaimed liberal “leader,” farted a little groupthought. He squatted and strained, and this one pooted out of his arse: “We can’t drill our way out of this one.” By the next day, every limp-wristed liberal in the country was blathering the same words as if they were really true. NOT ONE liberal ever sat and thought about the truth of that groupthought. They just kissed the arse of the Irish Jig and chanted his dumb ass slogan.
Irina Dunn pulled a little groupthought out of her arse: “a woman needs a man like a fish needs a bicycle.” And the next day, millions of womyn prattled the same stupid groupthought without considering its veracity. Millions of wives kissed Irina’s arse and belittled their loving husbands with that stupid ass slogan.
Some pansy ass liberal “leader” said that if you keep a gun in your house, you are far more likely to shoot one of your loved ones in anger with it, than you are to ever shoot a greasy, sneering, home-invading Pachuco boy. And next day, millions of liberals hit the streets babbling the same damn thing. NOT ONE liberal ever sat and thought about the stupidity of saying that. Not one liberal ever thought, “we are a loving, caring, family. We seldom argue, and wouldn’t think of using a gun to settle a beef. My family just doesn’t fit the statistics.” No, it’s easier for a liberal to use groupthink.
So sure enough, another sissy pants liberal “leader” says, “oh, but having a gun in the house makes it easier to kill your loved ones.” Well, duh. Guess that’s obvious, eh?. Driving a car makes it easier to crash into a brick wall. Taking a cruise makes it easier to drown. Living outside of a cave makes it easier to get hit by a meteor. Having a child makes it easier for your child to die before you. Are you going to sit paralyzed with fear because all those statements are true? NOT ONE effeminate liberal thought that through. Instead, legions of pantywaist liberals go around blathering the same insipid groupthought.
Some simpering poofter flounced into the room and said, “People don’t decide to become butt fucking faggots. They are born butt fucking faggots.” And millions of liberal twits accept that as truth. They yammer out the same idiocy as the poofters do. They never think for themselves. Come on, liberals, think! Are babies born eating butt? Are they born lisping and swishing? Are they born fisting each other and burgling turds? Think, liberals! Poofters become poofters by eating butt. They become poofters by fisting each other and corn holing the dog. Think, liberals! Don’t let a bunch of sodomites do your thinking for you.
Quit acting like a liberal! Don’t use Groupthink! Think for yourself!